Paving of Chappelle St. between Canal Blvd. and Argonne. Tests for concrete. Three tests shown: slump, cylinders, beams. First phase of 1956 paving lien program.
From left: The two inspectors from Shilstone Testing Laboratory; George Bosworth, City Purchasing Agent; George Bisso, Construction Engineer in Streets Dept.
February, 1957
[Photograph by Leon Trice Photography]